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Current models of the effect of spontaneous emission on the electron beam dynamics neglect the discreteness of electron recoil associated with photon emission. We present a novel, one-dimensional model of the effect of spontaneous emission…

加速器物理 · 物理学 2011-10-28 G. R. M. Robb , R. Bonifacio

The toolbox for imaging molecules is well-equipped today. Some techniques visualize the geometrical structure, others the electron density or electron orbitals. Molecules are many-body systems for which the correlation between the…

Coulomb interactions that occur in electronic structure calculations are correlated by allowing basis function components of the interacting densities to polarize, thereby reducing the magnitude of the interaction. Exchange integrals of…

化学物理 · 物理学 2022-05-16 Jerry L. Whitten

A theoretical investigation of the radiative capture of an electron into a bound state of heavy, hydrogen-like ion is presented. Special attention is paid to the question of how the linear polarization of the emitted radiation is affected…

原子物理 · 物理学 2015-05-28 A. Surzhykov , A. N. Artemyev , V. A. Yerokhin

We predict peculiar changes in spectral distributions of radiation emitted by ultra-relativistic positrons and electrons in periodically bent crystals with variation of the bending amplitude. It is shown that the changes, being sensitive to…

加速器物理 · 物理学 2019-09-04 Alexander V. Pavlov , Andrei V. Korol , Vadim K. Ivanov , Andrey V. Solov'yov

We investigate multi-electron effects in strong-field ionization of Helium using a semi-classical model that, unlike other commonly used theoretical approaches, takes into account electron-electron correlation. Our approach has an…

原子物理 · 物理学 2016-10-12 A. Emmanouilidou , A. Chen , C. Hofmann , U. Keller , A. S. Landsman

Momentum correlation functions at small relative momenta are calculated for light particles $\left(n, p, d, t\right)$ emitted from $^{197}$Au + $^{197}$Au collisions at different impact parameters and beam energies within the framework of…

核理论 · 物理学 2019-09-25 Ting-Ting Wang , Yu-Gang Ma , Zheng-Qiao Zhang

We study numerically stabilization against ionization of a fully correlated two-electron model atom in an intense laser pulse. We concentrate on two frequency regimes: very high frequency, where the photon energy exceeds both, the…

原子物理 · 物理学 2009-10-31 D. Bauer , F. Ceccherini

Magnetoelectric coupling in multiferroic materials opens new routes to control the propagation of light. The new effects arise due to dynamic magnetoelectric susceptibility that cross-couples the electric and magnetic fields of light and…

材料科学 · 物理学 2019-10-14 D. Szaller , A. Shuvaev , A. A. Mukhin , A. M. Kuzmenko , A. Pimenov

We present the angular distribution of electrons knocked out from an atom in a fast charge particle collision at small momentum transfer. It is determined not only by dipole but also by quadrupole transitions, the contribution of which can…

原子物理 · 物理学 2015-06-03 M. Ya. Amusia , L. V. Chernysheva , E. Z. Liverts

Photoelectron angular distributions of the two-photon ionization of neutral atoms are theoretically investigated. Numerical calculations of two-photon ionization cross sections and asymmetry parameters are carried out within the…

原子物理 · 物理学 2020-10-22 J. Hofbrucker , L. Eiri , A. V. Volotka , S. Fritzsche

We use a simple a transverse radial boost scenario coupled to PYTHIA events to illustrate the impact radial flow may have on two- and three-particle correlation functions measured in heavy-ion collisions. We show that modest radial…

核实验 · 物理学 2008-11-26 Claude A. Pruneau , Sean Gavin , Sergei A. Voloshin

Several experimental groups have recently obtained the so called vortex electrons (electrons with orbital angular momentum (OAM) of l = 100h) with energies of 300 keV. The gyromagnetic ratio of such electrons becomes proportional to the OAM…

加速器物理 · 物理学 2014-10-16 Anatoly S. Konkov , Alexander P. Potylitsyn , Marina S. Polonskaya

Shannon entropies of one- and two-electron atomic structure factors in the position and momentum representations are used to examine the behavior of the off-diagonal elements of density matrices with respect to the uncertainty principle and…

量子物理 · 物理学 2009-11-13 Robin P. Sagar , Nicolais L. Guevara

We investigate magnetic polarons in two-dimensional strongly correlated electron systems, where conduction electrons interact with antiferromagnetically interacting localized spins. Starting from a basic model, we derive a simplified model…

强关联电子 · 物理学 2019-11-25 Takao Morinari

We investigate how two-particle interactions affect the electronic transport through meso- and nanoscopic systems of two different types: quantum dots with local Coulomb correlations and quasi one-dimensional quantum wires of interacting…

介观与纳米尺度物理 · 物理学 2015-06-25 V. Meden

Core-polarization interactions are investigated in low-energy electron elastic scattering from the atoms In,Sn,Eu,Au and At through the calculation of their electron affinities. The complex angular momentum method wherein is embedded the…

原子物理 · 物理学 2015-10-07 Z. Felfli , A. Z. Msezane

We study transport properties of a two-dimensional electron gas, placed in a classically strong perpendicular magnetic field and in constant and oscillating in-plane electric fields. The analysis is based on a quantum Boltzmann equation…

介观与纳米尺度物理 · 物理学 2009-01-09 M. Khodas , M. G. Vavilov

With analytical treatment, the classical dynamics of an ultrarelativistic electron in two counter-propagating circularly polarized strong laser beams with either co-rotating or counter-rotating direction are considered. Assuming that the…

等离子体物理 · 物理学 2022-09-19 L. Aliani , Q. Z. Lv

We study quantitatively angular correlations in the two-particle spectrum produced by an energetic probe scattering off a dense hadronic target with sizeable saturation momentum. To this end, two parton inclusive cross sections for…

高能物理 - 唯象学 · 物理学 2009-11-11 Rudolf Baier , Alex Kovner , Marzia Nardi , Urs Achim Wiedemann